Darrin Mylet of Adaptrum demonstrates their white space solution at 2011 NAB. Using TDD OFDMA technology, tunable from 400 to 1,000 MHz, they were able to acheive 94% efficiency on a 6 MHz television channel with aggregated data rate of 11.1 Mbps. The equivalent transmitter output was less than 1 milliWatt and, using a 0…